Question

1.What is the center?
2.Which of the following are chords?
3.Which are the radii?
4.Which is the diameter?
5.Which is the tangent line?
6.Which is the secant line?
7.Which is the central angle?
8.Which is a Semicircle?
9.What is an intercepted arc of 10.Which is an inscribed angle?

Answer 1

Answer:

1. the middle point or part of something
2. The major chord contains the 1st, 3rd, and 5th notes of a major scale. For example, below is a C major scale. The notes of a C major chord are the 1st (the root note), 3rd, and 5th notes, which are C (the root note), E and G.
3. The radius is kind of the basic unit of a circle: its length is the distance from the center of a circle to any point on its circumference and it forms the basis for the radian. You can use the length of a circle's radius to find its circumference (C=2πr), its area (A=πr2), and its diameter (d=2r).
4. In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for the diameter of a sphere.
5. Technically, a tangent line is one that touches a curve at a point without crossing over it. Essentially, its slope matches the slope of the curve at the point. It does not mean that it touches the graph at only one point.
6. Secant line is a line that touches a curve at two points, pretty much the average rate of change because it is the rate of change between two points on a curve (x1,y1), (x2,y2) the average rate of change is = (y2-y1)/(x2-x1) which is the slope of the secant line between the two points on the curve.
7. A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. ... The central angle is also known as the arc's angular distance. The size of a central angle Θ is 0° < Θ < 360° or 0 < Θ < 2π (radians).
8. In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn). It has only one line of symmetry (reflection symmetry).
9. The Inscribed Angle Theorem states that the measure of an inscribed angle is half the measure of its intercepted arc. Inscribed angles that intercept the same arc are congruent. This is called the Congruent Inscribed Angles Theorem and is shown below.

Answer 2

Answer:

1. the middle point or part of something

3.The radius is kind of the basic unit of a circle: its length is the distance from the center of a circle to any point on its circumference and it forms the basis for the radian. You can use the length of a circle's radius to find its circumference (C=2πr), its area (A=πr2), and its diameter (d=2r).

4.

Diameter of a circle

The diameter is the length of the line through the center that touches two points on the edge of the circle

5.Technically, a tangent line is one that touches a curve at a point without crossing over it. Essentially, its slope matches the slope of the curve at the point. It does not mean that it touches the graph at only one point.

6.Secant line is a line that touches a curve at two points, pretty much the average rate of change because it is the rate of change between two points on a curve (x1,y1), (x2,y2) the average rate of change is = (y2-y1)/(x2-x1) which is the slope of the secant line between the two points on the curve.

7.A central angle is an angle whose apex (vertex) is the center O of a circle and whose legs (sides) are radii intersecting the circle in two distinct points A and B. ... The central angle is also known as the arc's angular distance. The size of a central angle Θ is 0° < Θ < 360° or 0 < Θ < 2π (radians).

8.In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn). It has only one line of symmetry (reflection symmetry).

9.The intercepted arc is a section of the circumference of a circle. It is encased on either side by two different chords or line segments that meet at one point, called a vertex, on the other side of the circle or in the middle of the circle

10.In geometry, an inscribed angle is the angle formed in the interior of a circle when two secant lines intersect on the circle. It can also be defined as the angle subtended at a point on the circle by two given points on the circle.